import { WonderlandEngine } from "@wonderlandengine/api";
export declare function getSession(engine?: Readonly<WonderlandEngine>): XRSession | null;
export declare function getSessionMode(engine?: Readonly<WonderlandEngine>): XRSessionMode | null;
export declare function getReferenceSpace(engine?: Readonly<WonderlandEngine>): XRReferenceSpace | null;
export declare function getReferenceSpaceType(engine?: Readonly<WonderlandEngine>): XRReferenceSpaceType | null;
export declare function getFrame(engine?: Readonly<WonderlandEngine>): XRFrame | null;
export declare function isSessionActive(engine?: Readonly<WonderlandEngine>): boolean;
export declare function isReferenceSpaceFloorBased(engine?: Readonly<WonderlandEngine>): boolean;
export declare function exitSession(engine?: Readonly<WonderlandEngine>): void;
export declare function registerSessionStartEventListener(id: unknown, listener: ((xrSession: XRSession, xrSessionMode: XRSessionMode) => void) | ((manualCall: boolean, xrSession: XRSession, xrSessionMode: XRSessionMode) => void), manuallyCallSessionStartIfSessionAlreadyActive?: boolean, addManualCallFlagToStartListener?: boolean, engine?: Readonly<WonderlandEngine>): void;
export declare function unregisterSessionStartEventListener(id: unknown, engine?: Readonly<WonderlandEngine>): void;
export declare function registerSessionEndEventListener(id: unknown, listener: () => void, engine?: Readonly<WonderlandEngine>): void;
export declare function unregisterSessionEndEventListener(id: unknown, engine?: Readonly<WonderlandEngine>): void;
export declare function registerSessionStartEndEventListeners(id: unknown, startListener: ((xrSession: XRSession, xrSessionMode: XRSessionMode) => void) | ((manualCall: boolean, xrSession: XRSession, xrSessionMode: XRSessionMode) => void), endListener: () => void, manuallyCallSessionStartIfSessionAlreadyActive?: boolean, addManualCallFlagToStartListener?: boolean, engine?: Readonly<WonderlandEngine>): void;
export declare function unregisterSessionStartEndEventListeners(id: unknown, engine?: Readonly<WonderlandEngine>): void;
export declare function isXRSupported(engine?: Readonly<WonderlandEngine>): boolean;
export declare function isVRSupported(engine?: Readonly<WonderlandEngine>): boolean;
export declare function isARSupported(engine?: Readonly<WonderlandEngine>): boolean;
export declare function isDeviceEmulated(onlyOnLocalhost?: boolean): boolean;
export declare const XRUtils: {
    readonly getSession: typeof getSession;
    readonly getSessionMode: typeof getSessionMode;
    readonly getReferenceSpace: typeof getReferenceSpace;
    readonly getReferenceSpaceType: typeof getReferenceSpaceType;
    readonly getFrame: typeof getFrame;
    readonly isSessionActive: typeof isSessionActive;
    readonly exitSession: typeof exitSession;
    readonly registerSessionStartEventListener: typeof registerSessionStartEventListener;
    readonly unregisterSessionStartEventListener: typeof unregisterSessionStartEventListener;
    readonly registerSessionEndEventListener: typeof registerSessionEndEventListener;
    readonly unregisterSessionEndEventListener: typeof unregisterSessionEndEventListener;
    readonly registerSessionStartEndEventListeners: typeof registerSessionStartEndEventListeners;
    readonly unregisterSessionStartEndEventListeners: typeof unregisterSessionStartEndEventListeners;
    readonly isReferenceSpaceFloorBased: typeof isReferenceSpaceFloorBased;
    readonly isXRSupported: typeof isXRSupported;
    readonly isVRSupported: typeof isVRSupported;
    readonly isARSupported: typeof isARSupported;
    readonly isDeviceEmulated: typeof isDeviceEmulated;
};